Patrick Palmeri

TL;DR: In this article, the authors compare the results of the OPAL with those of the Opacity Project (OP) to obtain the Rosseland-mean opacities for the chemical elements He, C, N, O, Ne, Na, Mg, Al, Si, S, Ar, Ca, Cr, Mn, Fe and Ni.

TL;DR: In this paper, the authors used the Opacity Project (OPAL) to obtain up-dated opacities from the inner-shell atomic data of the sun and compared them with those from OPAL and showed that the results from OP do not differ from those of OPAL by more than 2%.

TL;DR: In this paper, the authors examined the behavior of the properties of line emission and absorption as a function of the ionization parameter, density and column density of model constant density clouds, and showed that the effects of many strongly damped resonances below the K ionization thresholds conspire to smear the edge, thereby potentially affecting the astrophysical interpretation of absorption features in the 7-9 keV energy band.

TL;DR: In this paper, a combination of radiative lifetimes measured using the fast-beam-laser method and experimental branching ratios deduced from Fourier transform spectrometer spectra was used to derive experimental f-values for Luii lines observed in the visible and near-ultraviolet regions.

TL;DR: A detailed analysis of the radiative and Auger deexcitation channels of K-shell vacancy states in Fe II-Fe IX has been carried out in this article, where level energies, wavelengths, A-values, Auger rates and fluorescence yields have been calculated for the lowest fine-structure levels populated by photoionization of the ground state of the parent ion.